Automatic feed-water regulator.



2 SHEETSSHEET-1- PATENTBD MAR. 24,1903.

J. H. ROSENTHAL. AUTOMATIC FEED WATER REGULATOR.

APPLICATION FILED MAE e, 1902 N0 MODEL Np. 72s,s 13.- PATENT-ED MAR-24,1903;

' J. 11. ROSENTHAL.

AUTOMATIC FEED WATER REGULATOR.

APPLICATION FILED MAB 6, 1902. no MopnL. 2 snnnqrs-snzm z.

. UNITED STATES JAMES H. ROSENTHAL, OF LONDON, ENGLAND, ASSIGNOR TO THE BABOOCK 8c 1 WILOOX COMPANY, OF NEW YORK, N. Y.

AUTOMATIC FEED-WATER REGULATOR.

SPECIFICATION forming part of Letters Patent No. 723,313, dated March 24, 1903.

i p Application filed March 6,1902. Serial No. 96,943. (No model.)

To all whom it may. concern Beit known that I, JAMES H. ROSENTHAL, a subject of the King of Great Britain, residing at Oriel House, Farringdon street, London,

England, haveinvented certain new and'useful Improvements in Automatic Feed-Water Regulators for Steam-Generators,of which the following is a specification, reference being had therein to the accompanyingdrawings; This invention has for its object to provide improved apparatus for controlling the admission of feedwater to steam-boilers or like vessels, so as to automatically maintain an approximately uniform water-level, the height I5 of which may, however, be varied.

The invention is illustrated in the accompanying drawings, in which- Figure l is a horizontal section, and Fig. 2 a cross-section, of the improved feed-regulaa 2o tor as fitted to the shell or drum of" a boiler. Fig. 3 shows a sectional end elevation of a modification .in which the float-lever of. the regulator is balanced. As shown by-the drawings, the improved apparatus comprises a casing A, secured by an open fiangeconnection A? to the boiler drum B, thecasing being formed with an inlet branch A through which the feed-water enters,and an outlet branch A ,through which? 0 and the feed-cheek valve the water is deliv ered to the boiler. Within the casing is secured a liner:G,'having in it diagonal or inclined ports 0, opening, preferably, to the inlet branch A and within the liner is fitteda hollow cylindrical valve Dj ha'ving in it corresponding ports. d 'The cylindrical valve D has attached to its). lever E, extendinginto the boiler and terminating in a float F, which by the rise and fall of the water-level turns 40 the valves D on its axis within the liner, and the ports d in it, which are shown in the mean position inline with-or open to the ports c in the liner, are more or less opened or closed by this partial rotation of the valve. The

] valve D is also adapted to slide end wise Within the liner, and for this purpose a screwspindle Gis provided andpasses through a stuffing-box H in the casing-cover and a nut in the bridge I, a hand-Wheel J being fixed dle terminates in a disk G, which turns in ball or other antifriction bearings K between a cross-web of the valve D and an end cap or cover D. By means of the screw-spindle the valve D may be traversed, so that the efiective area of opening of the diagonal ports 0 and d may be varied, while the arrangement of ball-bearings between the regulating-spindle and the valve permits of the latter turning freely on its axis, the packed gland around the spindle not interfering with its action, so that friction is reduced to a minimum. For the purpose of balancing the valve D an orifice D may be formed in the crossweb of the valve, or the valve may be otherwise balanced.-

In the modification shown at Fig. 3 the weight of the float isbalanced by a counter- Weighted lever L, connected to the float-lever E; but in other respects the apparatusis 7o identicalwith that shown at Figs. 1,a'nd 2.

In the drawings, the valve D is shown in its middle position correspondingto the mean water-level with the portsc d fullopen. The feed-waterentersby the branchiA and passes through the liner 0 and hollow valve D to the branch A leading to the feed-checkvalve on the boiler. When the Water in the boiler rises, it carries the float F with it and causes the valve to move partly around till it closes the ports or causes them to remain sufficiently open to keep the water at a uniform level.

If it should be desired to Work with the Water at a different level, the valve D is moved along the liner by the screw G, and the ports being diagonal the valve must move farther around to reach the cut-off edge, which means a higher or lower water-level depending upon the direction and amount the valve is moved along the liner.

A rod M is attached to a bridle N, encircling the float lever E, which leaves the latter free to move in its required directions, but provides for moving the float by hand, so as to test its working or'for-jerkingit forthe 95 purpose of expelling any gritorforeign matter that may gather in the-valve. i

The apparatus may be placed entirely inside the boiler, the regulating-screw being led 50 on its outer end. The inner end of the spinto the outside.

IOO

I claim 1. An automatic feed-regulator for steamboilers, comprising a valve having ports for the passage of the feed-water, a float controlling the movements of such valve, and means for shifting the valve independent of the float, whereby the valve is arranged to feed at diiferent water-levels, substantially as set forth.

2. An automatic feed-regulator for boilers, comprising a rotatory valve having ports for the passage of the feed-water, a float for tu rning the valve about its longitudinal axis, and means for adjusting the valve longitudinally to vary the height of water which will be maintained in the boiler, substantially as set forth.

3. An automatic feed-regulator comprising a casing having inlet and outlet branches, a hollow rotatory valve fitted therein and provided with diagonal ports, a float arranged to move the valve about its longitudinal axis to control the opening and closing of the ports, substantially as set forth.

4. In an automatic feed-regulator, the combination of the casing provided with a valveseat formed with ports through which the Water passes, a rotatory valve mounted therein and provided with diagonal ports, a float arranged to partially rotate the valve by the rise and fall of the water-level, and means for adjusting the rotatory valve longitudinally to change the position of the ports in the valve relative to those in the valve-casing to cause the water to be maintained at different levels accordingly as the'valve is set substantially as set forth.

5. In an automatic feed-regulator, the combination of'a rotatory valve provided with ports through which the feed-water passes, a float connected with the valve and arranged to partially rotate the same as the water-level Varies, means for adjusting the valve longitudinally, and an antifriction bearing or joint between the valve, and the longitudinal adjustingmeans, substantially as set forth.

6. The combination of a casing havingacylindrical valve-seat formed with ports, a hollow cylindrical valve mounted therein and provided with diagonal ports d arranged to register with the ports in the valve-casing, a float connected with the valve and arranged to partially rotate the same as the water-level changes, an adjusting-screw for moving the valve longitudinally, and a ball-bearing connection between the screw and the valve, substantially as set forth.

In testimony whereof I affix my signature in presence of two witnesses.

JAMES H. ROSENTHAL.

Witnesses:

H. 1?. SMITH, J. B. SIRETT. 

